LED bulb



FIG. 1 is a front elevational view of a LED bulb showing my new design, the rear elevational view being a mirror image of the front elevational view;

FIG. 2 is a left side view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a perspective view thereof; and,

FIG. 7 is another perspective view thereof. 

The ornamental design for a LED bulb, as shown and described. 